There's more than lint in your pocket or purse: Take a closer look at your paper cash

Coin World explains how to identify the important details of your dollars

The oldest series year date out of a stack of $1 Federal Reserve notes the author set aside over a period of several weeks was this Series 2003A. The note was printed for the Richmond Federal Reserve Bank and has the signatures of United States Treasurer Anna Escobedo Cabral and U.S. Treasury Secretary John W. Snow. Coin World image.

Here's an example of one of the Series 2006 $1 FRNs I found, and this one was printed at the BEP's Fort Worth, Texas, facility. Notice the FW facility mark just above the numeral 7 in the right corner that indicates where the note was printed. The signatures of U.S. Treasurer Anna Escobedo Cabral and Treasury Secretary Henry M. Paulson, Jr. are on this note. Coin World image.

Of the 21 $1 FRNs that I set aside over several weeks, I found 15 Series 2009 notes like this one. No surprise, since it is the most recent series of $1 FRNs before the Series 2013 $1 FRNs began to enter the circulation stream. This note was printed in Texas for the San Francisco Federal Reserve Bank. Coin World image.

Editor's note: The following is the first of a multi-part Coin World series prepared by Michele Orzano for the September 2014 monthly edition of Coin World.

What do you see? Probably some $1s and $5s … maybe a $20, if it’s early in the week.

Nothing much to collect, right?

Wrong.

If you haven’t looked closely, you’ve missed some valuable details about those notes.

Let’s start by looking at the $1 Federal Reserve notes you’ve got.

Series year dates

First, look for the series year date. Unlike coins, U.S. paper money has a series year date that traditionally does not change each calendar year.

Generally, the series date changes when a denomination has a major redesign or when a new U.S. Treasury secretary is confirmed. The addition of a letter to the series date generally happens when a new United States treasurer takes office. Though aspects of the process have changed through the years, this is enough information to get started.

The series year date is usually in the lower right of the face of the note. What’s the newest series you have, and what’s the oldest?

You may find it helpful to know that in June and July of 2014, the Bureau of Engraving and Printing produced Series 2009 and Series 2013 $1 FRNs, Series 2013 $5, $10, $20 and $50 FRNs and Series 2009A $100 FRNs.

Federal Reserve notes continue to circulate based on their physical condition, not current series year date in production.

Printing facilities

Next look in the lower right corner on the face of your note. If you see a small “FW” right next to the plate-letter-number combination you have a “Fort Worth note,” from the BEP’s Western Currency Facility in Fort Worth, Texas.

Notes began to be printed at the Fort Worth facility in February 1991 and all notes bear what is called the FW facility mark to distinguish the notes from those printed at the BEP headquarters in Washington, D.C. Notes printed at the Washington, D.C., facility have no specific designation of origin.

Federal Reserve districts

Searching for the $1 Federal Reserve note can be the easiest way to form an inexpensive collection with plenty of variations.

One of the easiest ways to collect is to assemble from circulation a collection of $1 FRNs from each of the Federal Reserve District Banks.

The Commission of Fine Artsâ recommendation for the Proof 2014 American Eagle platinum coin, left, brought outrage and derision at the Citizens Coinage Advisory Committee meeting. The CCAC recommended the design to the right.

The Commission of Fine Artsâ recommendation for the Proof 2014 American Eagle platinum coin, left, brought outrage and derision at the Citizens Coinage Advisory Committee meeting. The CCAC recommended the design to the right.

The Commission of Fine Artsâ recommendation for the Proof 2014 American Eagle platinum coin, left, brought outrage and derision at the Citizens Coinage Advisory Committee meeting. The CCAC recommended the design to the right.

The Commission of Fine Artsâ recommendation for the Proof 2014 American Eagle platinum coin, left, brought outrage and derision at the Citizens Coinage Advisory Committee meeting. The CCAC recommended the design to the right.

The Commission of Fine Artsâ recommendation for the Proof 2014 American Eagle platinum coin, left, brought outrage and derision at the Citizens Coinage Advisory Committee meeting. The CCAC recommended the design to the right.